1989 Ford Mustang Speaker Sizes
The 1989 Ford Mustang factory audio system incorporates several locations that accommodate specific units. The dashboard accommodates a 3.5 inch speaker size, while the front door panel supports 5.25 inch speakers. Additionally, the rear deck lid and rear door panel support 6x8 inch units. Full-range and midbass units serve as compatible speaker types for a sound system replacement and upgrade.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 3.5 | Full-Range |
|
| Front Door Panel | 5.25 | Midbass / Full-Range |
|
| Rear Deck Lid | 6x8 | Full-Range |
|
| Rear Door Panel | 6x8 | Full-Range |
|
1989 Ford Mustang Speaker Replacement Summary
4
total positions
3
easy to replace
1
high priority
0
professional only
Replacement difficulty:
Low: 3 Medium: 1 High: 0Replacement priority:
High: 1 Medium: 3 Low: 01989 Ford Mustang Radio Slot Size (DIN)
| DIN Type | Size (inch) | Size (mm) | Notes |
|---|---|---|---|
| Single DIN or Double DIN | 7"×2" or 7"×4" | 180×50 or 180×100 | Vehicle supports both radio sizes |
- Always measure the slot before purchasing a new radio
- Check slot depth - it may vary
Additional Notes
- The dashboard location in the 1989 Ford Mustang accommodates 3.5 inch full-range speakers, which may be a lower priority for replacement compared to larger locations due to their limited output capabilities and placement restrictions.
- Front door panels accept 5.25 inch speakers and offer compatibility with both midbass drivers and full-range units, providing flexibility in component selection based on whether a separate tweeter system is planned.
- The rear deck lid and rear door panel locations both utilize 6x8 inch oval speakers rather than round configurations, which could potentially offer increased cone surface area compared to similarly sized round alternatives.
- Full-range speaker types are compatible across all four locations, suggesting a factory system design that did not originally incorporate separate tweeters or crossover networks.
- Upgrading the front door panel speakers might produce noticeable sound improvement for occupants due to their proximity to listening positions and their compatibility with dedicated midbass drivers.
- The 1989 Ford Mustang rear locations share identical 6x8 inch specifications, which could simplify replacement planning when selecting matched speaker pairs for the back of the vehicle.
- Component speaker systems with separate tweeters would likely require custom mounting solutions for the tweeter elements, as the factory locations support full-range designs without dedicated high-frequency driver provisions.
- The single DIN and double DIN radio compatibility suggests potential for head unit upgrades that could provide improved power output to drive aftermarket speakers more effectively than the original equipment.